While Macron has suggested he would be willing to send troops if Russia were to break through... I have seen zero credible reports that French troops are already being sent.
On the other hand, the US has admitted it already has “advisors” on the ground (just like Vietnam started).
https://www.youtube.com/watch?v=iGVrFxEzbM4&t=1351s
https://www.youtube.com/watch?v=U3EXCbdb47s
https://www.youtube.com/watch?v=R3CxDtU8oCU
Vietnam “started” because JFK sent in 16,000 troops, the advisors were doing their thing for the previous 13 years under 3 different presidents including Truman and 2 terms of Eisenhower.